Machine for treating the offal of animal carcasses.



No. 792,262. 'PATENTED JUNE 13, 1905. J. B. HAY & A. I. DANIEL.

MACHINE FOR TREATING THE OI'I'AL OF ANIMAL OARGASSES.

APPLICATION FILED SEPT. 8, 1904.

m u H I. H s n M W m H 1 0a 2 E O; E g M a 0 P e O O 0 a! A a e j DY 3 Unu-U Human-HUD 70 G, l T. j j F s e S a 7 m No. 792,262. PATENTED JUNE13, 1905.

J. B. HAY 8; A. J. DANIEL. MACHINE FOR TREATING THE OFFAL OF ANIMALGARGASSES.

APPLIOATION FILED SEPT. s. 1904. Q 2 SHEETSSHEET 2.

Patented June 13, 1905.

" ATENT OFFICE.

JOHN BUCHANAN HAY AND ALBERT JOHN DANIEL, OF WELLINGTON, NEWV ZEALAND.

MACHINE FOR TREATING THE OFFAL OF ANIMAL CARCASSES.

SPECIFICATION forming part of Letters Patent No. 792,262, dated June13,1905,

Application filed September 8, 1904. Serial No. 223,765.

To (bi Z whom it may concern.-

Be it known that we, JoHN BUoHANAN HAY and ALBERT JOHN DANIEL, subjectsof the King of Great Britain, residing at Petone, ellington, in theColony of New Zealand, have invented a new and useful Machine forTreating the Ofl'al of Animal Carcasses; and we do hereby declare thefollowing to be a full, clear, and exact description of the same.

This invention relates to means for treating the offal of animalcarcasses in order to separate therefrom the liquid constituents and forwashing the remainder or solid matter in order that the tallow containedtherein may be separated and collected and the residue saved forconversion into manure.

The means devised comprise a long hopper with a narrow opening extendinglongitudinally in its bottom. Mounted outside the hopper is a shaft towhich a number of radial knives are attached. The side of the hopper isprovided with slots therein, and the knifeshaft is so mounted inrelation thereto that as the shaft revolves the knives will passinto theslots and travel across the space in the bottom of the hopper. Beneaththe hopper are mounted a pair of squeezing-rollers adjustable in theirdistance apart and mounted on horizontally-parallel axes. These rollersare carried in bearings upon a suitable frame at each end and rotate inopposite directions. Beneath the rollers is mounted transversely anendless traveling table composed, preferably, of laths of metal linkedtogether. This table is arranged at an incline, and its lower end isplaced beneath the point of engagement of the squeezing-rollers. The topend of the table extends upward over a narrow water trough or tank, inwhich is mounted a similar endless traveling table, also arranged totravel in an upwardlyinclined di rection and projecting out above oneend of the tank.

In the accompanying drawings, Figure 1 is a side elevation of the hopperand squeezingrollers mounted in their frame. Fig. 2 is a sectionalelevation of the same. Fig. 3 is a longitudinal section taken on theline 3 3 of Fig. 1. Fig. A is a side elevation of the whole of theappliances with the hopper removed, portion of the washing-trough beingshown in section to properly illustrate the traveling band therein. Fig.5 is a plan of the washingtrough and traveling bands, the roller-framebeing shown in sectional plan on the line 5 5 of Fig. 4..

a is the hopper, which is mounted on top of a suitable frame composed oftwo checkplates 1), bolted together by suitable tie-bolts. The bottom ofthe hopper is 0 en, and it is narrowed in width toward t e bottom.Mounted in bearings outside the hopper is the shaft 0, which extendsacross the full length of the hopper and to which are secured a numberof cutting-knives (25. These knives are arranged in sets secured atintervals throughout the length of the shaft 0. The knives are made,preferably, of the form shown in Figs. 1 and2 witha curved cutting edgecurving outward in the direction of rotation. The sides of the hopperaare provided with slots 6 opposite each set of knives (1, so that assuch knives are rotated they will pass through the slots and extendacross the full width of the hopper, the knives being made of suflicientlength to allow of them so extending. Beneath the bottom of the hopperare the squeezingrollers f, which are supported on spindles carried inbearings g, mounted within the side frames 1). These rollers are mountedon parallel axes and extend longitudinally beneath the hopper. Theperipheral faces of the rollers are placed in engagement with each otherand are kept in springy contact by mounting one roller in slidingbearings, against the outer faces of which helical springs h bear, thetension on such springs and the consequent pressure of the rollers beingregulated by setscrews j. The peripheral faces of the rollers arepreferably fluted, as shown in Fig. 2. The rollers are caused to revolvein opposite directions, and the knife-shaft c is caused to rotate bychain-and-sprocket gearing is, connected with one of the rollers.

Referring now to Figs. 4 and 5, Z is the endless travelingband, mountedbeneath the rollers. The band is carried on sprocket-wheels mounted onshafts m, supported in bearings upon the frame I), and is composed ofendless chains 12, passing over the sprocket-wheels an d carrying laths0, of wood or metal, secured at their ends to the respective chains andarranged in parallel lines extending longitudinally across beneath therollersfwith spaces between them. An endless traveling grating is thusformed. This band extends from be neath the point of contact between therollers upward at a slight incline to beyond one side of the frame. 2)is the washing-trough, which is adapted to contain water and is providedwith a sluice-valve r at one on d, by means of which it may be emptied.Extending longitudinally above the troughis a perforated water-pipe s,by means of which water may be sprayed downward into the trough, so thatwhen the valve 1 is opened a stream of water will flow through thetrough. The upper on d of the band 1 leads to a point above one end ofthe trough. tis an endless traveling band similar in construction. tothe band I, one end of which is mounted within the trough. beneath theupper end of the band Z, while the other end is carried on supportsabove the other end of the trough. The band thus extends at an inclinefrom within the trough. at one end to above and projecting beyond it atthe other. ing the traveling bands t and L from the rollersfareprovided, so that the whole of the appliances may thus be caused tooperate simul taneously. Other and separate means may, however, beemployed.

In operation the whole of the olil'al is led into the hopper a, downwhich. it will gravitate. W'hen it reaches the bottom, it will come intocontact with the knives d, which have been started revolving, whichknives will cut and slit it and will force it down through the bottom ofthe hopper. The stufl will then fall between the rollers f and will becarried through and. the liquid matter squeezed out. Such liquid matterwill then fall through the spaces in the traveling band Z onto the'lloor beneath the rollers and will be drained away in any suitablemanner. The solid matter will fall onto the band and will be carriedupward by it and delivered over its top end onto the bottom end of thetraveling band tin the trough p. It is then *carried along on this bandthrough the trough and during the first part of its course will meet acurrent of water flowing through the trough in the opposite direction.This water will wash the tallow and other fatty matters from the stuff,which tallow may then be collected in settling-tanks of ordinary type.The ollal. thus lreed from its liquid and latty matters will be carriedup out of the trough. and delivered. over the top end ol" the band iinto any suitable receptacle and Suitable driving-belts u fordrivremovedlor any desired further treatment such, for instance, as forconversion into manure. ll desired, a stream of water may be led intothe hopper through the perforated water-pipe m-to assist in theseparation ot the liquid from. the solid constituents of the o'llal.

In some instances the washing-trough and its adjuncts may be dispensedwith and the solid matter of the oll'al taken away for treatmentdirectly after passing between the squeezing-rollers.

hat we do claim as our invention, and desire to secure by LettersPatent, is

1. In means for cleaning the o'l'lal ol" ani mal carcasses, a hopperformed, with a narrow longitudinal opening in its bottom, a rotatingshaft mounted outside the hopper, l nite-blades radiating from the shaltand adapted to pass across the space inclosed between the sides ol' thehopper near its bottom, and a pair of squeezing-rollers mounted onparallel axes longitudinally beneath the hopper adapted to rotate inopposite directions, substantially as specified.

2. ln means for cleaning the o'l'l al of animal carcasses, a hopperformed with a narrow longitudinal opening in its bottom a retating shaftoutside the hopper, knife-blades radiating from the shaft and adapted topass across the space inclosed between the sides of the hopper near itsbottom, a pair of squeezing-rollers mounted on parallel longitudinallybeneath the hopper and rotating in opposite directions, in combinationwith a trough, a traveling grating extending longitudinally through suchtrough and a perforated water-pipe extending above the grating,substantially as specified.

In means for cleaning the ol'l'al of animal carcasses a hopper mountedon a frame and provided with a longitudinal opening in the bottom,rotating knives passing across the space inclosed near the bottom of thehopper, squeezing-rollers mounted in the frame below the hopper, anendless traveling grating extending from beneath the rollers to one sideol? the 'l'rame, a trough above one end 01 which the grating extends, anendless travelii'ig grating extending along such trough and above theother end thereol" and means whereby a stream. of water may be deliveredonto the grating, substantially as specified.

In testimony whereo'l we have signed this specification in the presenceof two subscribmg witnesses.

JOHN BUCHANAN HAY. ALBERT JOHN DANIEL. Witnesses \V. ALEXANDER, G. T,Wrx.

